Here is my issue - took my GPS in the car today and founf my Speedo is off by atleast 5 miles an hour at 45 mph and gets worst as I go faster.
Here are the specs of the car - I have a TH350 in my 86 Monte
stock height tires 215/65/15
3.73 Posi Rear end.
Does any one know where to buy the correct gear and the part # or am I going to have to pull the one out and figure out what it is an make an educated guess to the next set of teeth and hope I am right
Any help would be greatly appreciated
86 Monte Carlo SS - 350 - built Turbo 350 tranny - Computer Delete with a Mallory Vac advance Distributor #8548201C - Eddy Carb #1406 Eddy 2101 Aluminum Dual Plane Intake, Eddy Performer plus Cam and Lifter Kit with #5794 Valve Spring Kit